Laser engraving machine



FIG. 1 is a front elevational view of a laser engraving machine showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof; and,

FIG. 8 is another perspective view thereof.

The broken lines in the drawings show unclaimed portions of the laser engraving machine only and form no part of the claimed design. 

CLAIM The ornamental design for a laser engraving machine, as shown and described. 